From 1640f6463f10beaf69de133d95d38e0819045caa Mon Sep 17 00:00:00 2001
From: sosukesuzuki <aosukeke@gmail.com>
Date: Sat, 12 Dec 2020 03:17:24 +0900
Subject: [PATCH] Enter new prodParam scope

---
 .../babel-parser/src/parser/expression.js     |  6 +++
 .../input.js                                  |  1 +
 .../options.json                              |  4 ++
 .../output.json                               | 40 +++++++++++++++++++
 4 files changed, 51 insertions(+)
 create mode 100644 packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/input.js
 create mode 100644 packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/options.json
 create mode 100644 packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/output.json

diff --git a/packages/babel-parser/src/parser/expression.js b/packages/babel-parser/src/parser/expression.js
index 5eb7ee2a618e..2a9ac7cceab4 100644
--- a/packages/babel-parser/src/parser/expression.js
+++ b/packages/babel-parser/src/parser/expression.js
@@ -2641,8 +2641,14 @@ export default class ExpressionParser extends LValParser {
     this.state.exportedIdentifiers = [];
     this.eat(tt.braceL);
     this.scope.enter(SCOPE_OTHER);
+    let paramFlags = PARAM;
+    if (this.hasPlugin("topLevelAwait")) {
+      paramFlags |= PARAM_AWAIT;
+    }
+    this.prodParam.enter(paramFlags);
     this.parseBlockOrModuleBlockBody(node.body, undefined, true, tt.braceR);
     this.scope.exit();
+    this.prodParam.exit();
     this.eat(tt.braceR);
     this.state.labels = oldLabels;
     this.state.exportedIdentifiers = oldExportedIdentifiers;
diff --git a/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/input.js b/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/input.js
new file mode 100644
index 000000000000..3eb8123ffe50
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/input.js
@@ -0,0 +1 @@
+module { await 3 };
diff --git a/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/options.json b/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/options.json
new file mode 100644
index 000000000000..92bd836fbbd2
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/options.json
@@ -0,0 +1,4 @@
+{
+  "sourceType": "module",
+  "plugins": ["moduleBlocks", "topLevelAwait"]
+}
diff --git a/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/output.json b/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/output.json
new file mode 100644
index 000000000000..a89661c7df2f
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/experimental/module-blocks/valid-top-level-await-in-module-blocks/output.json
@@ -0,0 +1,40 @@
+{
+  "type": "File",
+  "start":0,"end":19,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":19}},
+  "program": {
+    "type": "Program",
+    "start":0,"end":19,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":19}},
+    "sourceType": "module",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "ExpressionStatement",
+        "start":0,"end":19,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":19}},
+        "expression": {
+          "type": "ModuleExpression",
+          "start":0,"end":18,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":18}},
+          "body": [
+            {
+              "type": "ExpressionStatement",
+              "start":9,"end":16,"loc":{"start":{"line":1,"column":9},"end":{"line":1,"column":16}},
+              "expression": {
+                "type": "AwaitExpression",
+                "start":9,"end":16,"loc":{"start":{"line":1,"column":9},"end":{"line":1,"column":16}},
+                "argument": {
+                  "type": "NumericLiteral",
+                  "start":15,"end":16,"loc":{"start":{"line":1,"column":15},"end":{"line":1,"column":16}},
+                  "extra": {
+                    "rawValue": 3,
+                    "raw": "3"
+                  },
+                  "value": 3
+                }
+              }
+            }
+          ]
+        }
+      }
+    ],
+    "directives": []
+  }
+}
\ No newline at end of file